[Bug] Deleted conversations were restored after WebDAV sync / WebDAV 同步后，之前删除的聊天被还原

[2-3-5-7]

环境：
部署到 vercel，用自己的域名
webdav 是 koofr.net 挂载了 Google Drive
问题：
点同步时，数据都保存了（看 console 没看到报错什么的，也没出现 #2820 的问题，用另一个浏览器测试也能正常恢复数据）。
但是当我删除了一个聊天 (conversation) 后，再次同步，删除的聊天被还原了。

[Issues-translate-bot]

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environment:
Deploy to vercel, use your own domain name
webdav is koofr.net mounted Google Drive
question:
When you click sync, the data is saved. Then I deleted a chat (conversation) and synchronized it again, and the deleted chat was restored.

[Yidadaa]

目前的同步并没有考虑消息删除的情况。

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The current synchronization does not take into account message deletion.

[H0llyW00dzZ]

I've been implement this include my favorite sync service using github gist

Untitled.video.-.Made.with.Clipchamp.4.mp4

[Masque423]

希望被删除的聊天，同步之后云中的记录也会被删除

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For chats that you wish to delete, the records in the cloud will also be deleted after synchronization.

[chen-xin-94]

希望被删除的聊天，同步之后云中的记录也会被删除

+1

[Issues-translate-bot]

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For chats that you want to delete, the records in the cloud will also be deleted after synchronization.

+1

[Hoshino-Yumetsuki]

希望被删除的聊天，同步之后云中的记录也会被删除

+1

[Issues-translate-bot]

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For chats that you want to delete, the records in the cloud will also be deleted after synchronization.

+1

[Hoshino-Yumetsuki]

并且还有一种情况，就是删除面具时被删除的面具也不会同步

[Issues-translate-bot]

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And there is another situation where the deleted mask will not be synchronized when you delete the mask.

[ahzmr]

我实现了这个功能，现在还在自测，我自己用一切正常。你们可以试试：https://github.com/ahzmr/ChatGPT-Next-Web/tree/v2.14.0.1

[Issues-translate-bot]

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I implemented this function and am still testing it myself. Everything works fine when I use it myself. You can try: https://github.com/ahzmr/ChatGPT-Next-Web.git